patch 8.0.0465: off-by-one error in using :move with folding

Problem:    Off-by-one error in using :move with folding.
Solution:   Correct off-by-one mistakes and add more tests. (Matthew
            Malcomson)
diff --git a/src/version.c b/src/version.c
index efef5f8..3f49895 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    465,
+/**/
     464,
 /**/
     463,